/*
* Copyright 2015 Robert von Burg <eitch@eitchnet.ch>
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package li.strolch.service;
import li.strolch.command.AddResourceCommand;
import li.strolch.command.RemoveResourceCommand;
import li.strolch.command.UpdateResourceCommand;
import li.strolch.model.ModelGenerator;
import li.strolch.model.Resource;
import li.strolch.persistence.api.StrolchTransaction;
import li.strolch.service.api.AbstractService;
import li.strolch.service.api.ServiceArgument;
import li.strolch.service.api.ServiceResult;
import li.strolch.service.test.AbstractRealmServiceTest;
import li.strolch.utils.dbc.DBC;
import org.junit.Test;
public class FlushTxTest extends AbstractRealmServiceTest {
@Test
public void shouldFlushSuccessfully1() {
runServiceInAllRealmTypes(FlushingCommandsService1.class, new ServiceArgument());
}
@Test
public void shouldFlushSuccessfully2() {
runServiceInAllRealmTypes(FlushingCommandsService2.class, new ServiceArgument());
}
@Test
public void shouldRollbackSuccessfully() {
runServiceInAllRealmTypes(RollbackAfterFlushCommandsService.class, new ServiceArgument());
}
public static class FlushingCommandsService1 extends AbstractService<ServiceArgument, ServiceResult> {
private static final long serialVersionUID = 1L;
@Override
protected ServiceResult getResultInstance() {
return new ServiceResult();
}
@Override
protected ServiceResult internalDoService(ServiceArgument arg) throws Exception {
String id = "flushSuccessfully";
Resource resource = ModelGenerator.createResource(id, id, id);
try (StrolchTransaction tx = openTx(arg.realm)) {
DBC.PRE.assertNull("Did not expect resource with id " + id, tx.getResourceBy(id, id));
AddResourceCommand addResCmd = new AddResourceCommand(getContainer(), tx);
addResCmd.setResource(resource);
tx.addCommand(addResCmd);
tx.flush();
DBC.PRE.assertNotNull("Expected resource with id " + id, tx.getResourceBy(id, id));
RemoveResourceCommand rmResCmd = new RemoveResourceCommand(getContainer(), tx);
rmResCmd.setResource(resource);
tx.addCommand(rmResCmd);
tx.flush();
DBC.PRE.assertNull("Expect to remove resource with id " + id, tx.getResourceBy(id, id));
tx.commitOnClose();
}
// now make sure the new resource does not exist
try (StrolchTransaction tx = openTx(arg.realm)) {
Resource res = tx.getResourceBy(id, id);
if (res != null) {
throw tx.fail("Did not expect resource with id " + id);
}
}
return ServiceResult.success();
}
}
public static class FlushingCommandsService2 extends AbstractService<ServiceArgument, ServiceResult> {
private static final long serialVersionUID = 1L;
@Override
protected ServiceResult getResultInstance() {
return new ServiceResult();
}
@Override
protected ServiceResult internalDoService(ServiceArgument arg) throws Exception {
String id = "flushSuccessfully";
Resource resource = ModelGenerator.createResource(id, id, id);
try (StrolchTransaction tx = openTx(arg.realm)) {
DBC.PRE.assertNull("Did not expect resource with id " + id, tx.getResourceBy(id, id));
AddResourceCommand addResCmd = new AddResourceCommand(getContainer(), tx);
addResCmd.setResource(resource);
tx.addCommand(addResCmd);
tx.flush();
DBC.PRE.assertNotNull("Expected resource with id " + id, tx.getResourceBy(id, id));
Resource res = tx.getResourceBy(id, id);
UpdateResourceCommand updateResCmd = new UpdateResourceCommand(getContainer(), tx);
updateResCmd.setResource(res);
tx.addCommand(updateResCmd);
tx.commitOnClose();
}
// now make sure the new resource does exist
try (StrolchTransaction tx = openTx(arg.realm)) {
Resource res = tx.getResourceBy(id, id);
if (res == null) {
throw tx.fail("Did not find expected resource with id " + id);
}
}
return ServiceResult.success();
}
}
public static class RollbackAfterFlushCommandsService extends AbstractService<ServiceArgument, ServiceResult> {
private static final long serialVersionUID = 1L;
@Override
protected ServiceResult getResultInstance() {
return new ServiceResult();
}
@Override
protected ServiceResult internalDoService(ServiceArgument arg) throws Exception {
String id = "flushSuccessfully2";
Resource resource = ModelGenerator.createResource(id, id, id);
try (StrolchTransaction tx = openTx(arg.realm)) {
DBC.PRE.assertNull("Did not expect resource with id " + id, tx.getResourceBy(id, id));
AddResourceCommand addResCmd = new AddResourceCommand(getContainer(), tx);
addResCmd.setResource(resource);
tx.addCommand(addResCmd);
tx.flush();
DBC.PRE.assertNotNull("Expected resource with id " + id, tx.getResourceBy(id, id));
// now force a rollback
tx.rollbackOnClose();
}
// now make sure the new resource does not exist
try (StrolchTransaction tx = openTx(arg.realm)) {
Resource res = tx.getResourceBy(id, id);
if (res != null) {
throw tx.fail("Did not expect resource with id after rolling back previous TX " + id);
}
}
// now do it over, but use throw
try (StrolchTransaction tx = openTx(arg.realm)) {
DBC.PRE.assertNull("Did not expect resource with id " + id, tx.getResourceBy(id, id));
AddResourceCommand addResCmd = new AddResourceCommand(getContainer(), tx);
addResCmd.setResource(resource);
tx.addCommand(addResCmd);
tx.flush();
DBC.PRE.assertNotNull("Expected resource with id " + id, tx.getResourceBy(id, id));
// now force a rollback
throw tx.fail("Oh snap, something went wrong!");
} catch (Exception e) {
// expected
}
// now make sure the new resource does not exist
try (StrolchTransaction tx = openTx(arg.realm)) {
Resource res = tx.getResourceBy(id, id);
if (res != null) {
throw tx.fail("Did not expect resource with id after rolling back previous TX " + id);
}
}
return ServiceResult.success();
}
}
}